Alba A2 L7

1. In paragraph 1, why does the author mention Girolamo Fracastoro?

• D

• A

• B

• C

2. 2. According to paragraph 2, gut microbiota

• A

• B

• C

• D

3. 3. What can we infer from paragraph 2 about microbes in the human body?

• A

• B

• C

• D

4. 4. The word "postulate" in the passage is closest in meaning to

• A. fear

• B. verify

• C. confide

• D. theorize

5. 5. The word "their" in the passage refers to

• A

• B

• C

• D

6. 6. Which of the following is NOT mentioned in paragraph 3 about the mice used in research on gut flora?

• A

• B

• C

• D

7. 7. The word "thwarted" in the passage is closest in meaning to

• A. delayed

• B. stopped

• C. reduced

• D. opposed

8. 8. The word "preclude" in the passage is closest in meaning to

• A. prevent

• B. prepare

• C. criticize

• D. condone

9. 9. According to paragraph 4, which of the following is true of research on gut flora?

• A

• B

• C

• D

10. 10. The word "they" in the passage refers to

• A. small molecules

• B. metabolic processes

• C. chemical interactions

• D. blood and brain tissues